// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/base/models/table_model.h"

#include "base/i18n/string_compare.h"
#include "base/logging.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/gfx/image/image_skia.h"

namespace ui {

// TableColumn -----------------------------------------------------------------

TableColumn::TableColumn()
    : id(0)
    , title()
    , alignment(LEFT)
    , width(-1)
    , percent()
    , min_visible_width(0)
    , sortable(false)
    , initial_sort_is_ascending(true)
{
}

TableColumn::TableColumn(int id, Alignment alignment, int width, float percent)
    : id(id)
    , title(l10n_util::GetStringUTF16(id))
    , alignment(alignment)
    , width(width)
    , percent(percent)
    , min_visible_width(0)
    , sortable(false)
    , initial_sort_is_ascending(true)
{
}

// TableModel -----------------------------------------------------------------

// Used for sorting.
static icu::Collator* collator = NULL;

gfx::ImageSkia TableModel::GetIcon(int row)
{
    return gfx::ImageSkia();
}

base::string16 TableModel::GetTooltip(int row)
{
    return base::string16();
}

bool TableModel::ShouldIndent(int row)
{
    return false;
}

bool TableModel::HasGroups()
{
    return false;
}

TableModel::Groups TableModel::GetGroups()
{
    // If you override HasGroups to return true, you must override this as
    // well.
    NOTREACHED();
    return std::vector<Group>();
}

int TableModel::GetGroupID(int row)
{
    // If you override HasGroups to return true, you must override this as
    // well.
    NOTREACHED();
    return 0;
}

int TableModel::CompareValues(int row1, int row2, int column_id)
{
    DCHECK(row1 >= 0 && row1 < RowCount() && row2 >= 0 && row2 < RowCount());
    base::string16 value1 = GetText(row1, column_id);
    base::string16 value2 = GetText(row2, column_id);
    icu::Collator* collator = GetCollator();

    if (collator)
        return base::i18n::CompareString16WithCollator(*collator, value1, value2);

    NOTREACHED();
    return 0;
}

void TableModel::ClearCollator()
{
    delete collator;
    collator = NULL;
}

icu::Collator* TableModel::GetCollator()
{
    if (!collator) {
        UErrorCode create_status = U_ZERO_ERROR;
        collator = icu::Collator::createInstance(create_status);
        if (!U_SUCCESS(create_status)) {
            collator = NULL;
            NOTREACHED();
        }
    }
    return collator;
}

} // namespace ui
